Match the following terms and definitions:
| _____ supertype | a. subset of supertype |
| _____ entity cluster | b. entity belongs to two subtypes |
| _____ subtype | c. subtype gets supertype attributes |
| _____ specialization | d. generalized entity type |
| _____ subtype discriminator | e. creating subtypes for an entity type |
| _____ attribute inheritance | f. a group of associated entity types and relationships |
| _____ overlap rule | g. locates target subtype for an entity |
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